The freon has leaked away from the AC on my1986 buick lesabre. I purchased a can of Freon (R134a), but the connectors don't match. Does the 1986 Buick even us this type of freon, and if so what kind of connector do I need. I assume I was trying to connect to the low side which was a connector at the top of the refrigerent cannister next to the firewall.
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Re: freon and connector for 1986 buick lesabre
There are two hoses coming out of the firewall side by side .. one is large and one is small ... they both have valve ports but only the large tube (low pressure side) is to be used for adding refrigerant .. if your connector from the R134a can does not fit ..then you probably have the older R12 system .. that has been outlawed now because of ozone layer destruction caused by it ..you cant get that anymore .. you can however convert your system to R134a but it involves washing out the entire system and replacing all rubber parts ..then attaching adapters so the R134a will connect (availible auto parts) .. by law any remaining R12 in your system has to be recovered, not vented to air .. (actually the r12 is worth a fortune right now but it may not be legal to sell ..its about a 25 times increase) ... the modification process requires a "certified" tech to do the work and the results wont be quite as good as the old r12 ... at least it will work if the system is cleaned out enough .. the two refrigerants dont like each other .. that is, the lubes that are used do nasty things when mixed .. if you wanted to you could become "certified" by attending some classes and passing a test on ozone layer depletion ... now they have discovered that r134a is a powerfull green house gas .. so that also will be phased out in the future .. its like 1600 times worse than CO2 ... r12 was a wonderful chemical .. very hard to beat its performance and stability .. .
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I am going to assume you meant AC Compressor as the condenser is basically like a radiator in that it cools the freon.
I would say that your freon is probably too low to kick the compressor on. This could be simple as adding some freon (With Leak stop(just to be sure)) would get it working again. The question is, why did it get low? Could be just age and it needs a little freon but usually means that there is a leak somewhere (Hopefully it is not the condenser leaking). Some leaks are small enough that you just need to add freon every month or so but they eventually get bigger. Look for oil around the AC connections and hoses. Could be an O-ring that has gone bad. Hopefully it is simply low on freon.
Thats pretty high if the system is not running. Average pressure on the low and high side should be near outside air temp. Normal low side is 30-40 psi and high side is 200-250 psi when the system is running and the freon charge is full.
The refrigerant needed by your lumina is the freon(R134A) gas which can be purchased at the auto parts store.
Please follow the instructions below carefully.
1.To install freon in your 98 lumina you will need to purchase the freon (r134a) and a hose kit from your local parts store.
2.locate the low pressure side of your ac system, usually by the radiator, but sometimes next to the condenser. The hose will only fit on one, so if it doesnt fit on the first you find, find the other.
3.Afterwards,with the car running and the ac on full blower,puncture the can and allow freon to flow freely into the system.
usually the service port is located on the accumulator. this is the big can looking silver thing under the hood. although i dont recommend just throwing freon in it without the proper gauges to monitor the high and low pressure. you can damage the compressor and components. if your leaking freon having it repaired is more logical then adding freon and having it leak out again. hope this helps
look for the fitting that is the smaller of the two and is attached to the line that is the larger of the two, this is the "low" fill side, add 2 cans of r134a freon each can is one pound the system empty holds 2 3/4 pounds of freon thats 2 3/4 cans.
I would buy 1 can of leak detector/freon combo and one can of dye/freon combo, if it takes more add a small amount of a third can that has an oil mixture in with the freon that would complete your systems needs the cheapest and fastest way possible.
If you want it done to the book then you need to have a certified A/C man vacumn pump down the system, replace the reciever drier, add freon and oil to fill the system and then check for leaks.
The most common cause in these cars is low refrigerant charge (R134A refrigerant). The safest and proper way is to have the system leak tested and the AC pressures tested with gauges. That said many people buy the precharged cans of refrigerant that come with a charging hose and low side (this is the side refrigerant is added to) charge indicator for about $20. These cans also contain oil for the A/C system. Don't overcharge the system.
Note if you have a leak it will quit again. How long it'll last depends on the nature and severity of the leak.
Depends on if it takes R134 A or R12 refridgent. R134A most likley looking around $150 depending on amount of freon the system holds. if its R12 open your piggy bank cause its going to cost you some coin as R12 is no longer in production you have to convert your system to R134A or find a gararge that still has some R12